Exploiting Market Overreactions: A Gap Fill Trading Strategy

Markets don’t just move on logic, they move on emotion. And few moments capture that better than the market open after a sharp overnight sell-off.

In this video, we break down a systematic trading approach built around one simple idea: market overreaction.

When a stock opens significantly lower than the previous day’s range, it often reflects panic rather than fair value. These situations can create short-term inefficiencies — and that’s exactly where this strategy operates.

You’ll learn how to:

• Define a meaningful “panic gap” using a clear 2% rule
• Filter out noise and focus only on statistically significant moves
• Rank opportunities using volatility (ATR) to find the strongest setups
• Structure trades to avoid PDT restrictions
• Improve stability with a higher timeframe trend filter

This isn’t discretionary trading. It’s a rule-based, testable approach designed to remove emotions and focus on repeatable edge.

We also walk through a full implementation in StrategyQuant, including backtest results and risk considerations.

If you’re interested in systematic trading, mean reversion strategies, or exploiting short-term inefficiencies in equities, this is worth your time.

👉 Watch the full breakdown here: